US3718566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarographic electrode assembly
Assignee: Honeywell International Inc
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Filing: 1971-01-07
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Granted: 1973-02-27
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Expires: 1991-01-07
Abstract
Abstract AN ELECTROCHEMICAL ELECTRODE ASSEMBLY INCLUDES A HOUSING DEFINING AN ELECTROLYTE CHAMBER. THE HOUSING HAS AN APERTURE IN A WALL AND A SELECTIVELY PERMEABLE MEMBRANE IS DISPOSED ACROSS THE APERTURE. AN ELECTRODE IS SUPPORTED WITHIN THE CHAMBER IN CLOSE PROXIMITY TO THE MEMBRANE AND A FILTER IS SUPPORTED ON THE HOUSING AND INTERPOSED BETWEEN THE MEMBRANE AND TEST MATERIAL IN SPACED RELATION TO THE MEMBRANE TO INTERCEPT LIQUID PARTICLES WHILE FREELY PASSING GAS FROM THE MEDIUM.
Inventors
- 👤 W Krebs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |